Chance and I go running a few days per week. It's a great way to burn off all that energy he seems to have. Cricket, on the other hand, has hip dysplasia and seems to tire very quickly during our runs. She slows us down significantly and also gets uncomfortable afterward. The issue is this - she's a staffy (or mostly staffy, she came from a shelter so who knows exactly) and has a LOT of energy. As fortune would have it, she LOVES the pool and I have a new underwater camera